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<a href="classEigen_1_1MapBase_3_01Derived_00_01ReadOnlyAccessors_01_4-members.html">List of all members</a> &#124;
<a href="#pub-methods">Public Member Functions</a>  </div>
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<div class="title">Eigen::MapBase&lt; Derived, ReadOnlyAccessors &gt; Class Template Reference<div class="ingroups"><a class="el" href="group__DenseMatrixManipulation__chapter.html">Dense matrix and array manipulation</a> &raquo; <a class="el" href="group__DenseMatrixManipulation__Reference.html">Reference</a> &raquo; <a class="el" href="group__Core__Module.html">Core module</a></div></div>  </div>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template&lt;typename Derived&gt;<br />
class Eigen::MapBase&lt; Derived, ReadOnlyAccessors &gt;</h3>

<p>Base class for dense <a class="el" href="classEigen_1_1Map.html" title="A matrix or vector expression mapping an existing array of data.">Map</a> and <a class="el" href="classEigen_1_1Block.html" title="Expression of a fixed-size or dynamic-size block.">Block</a> expression with direct access. </p>
<p>This base class provides the const low-level accessors (e.g. coeff, coeffRef) of dense <a class="el" href="classEigen_1_1Map.html" title="A matrix or vector expression mapping an existing array of data.">Map</a> and <a class="el" href="classEigen_1_1Block.html" title="Expression of a fixed-size or dynamic-size block.">Block</a> objects with direct access. Typical users do not have to directly deal with this class.</p>
<p>This class can be extended by through the macro plugin <code>EIGEN_MAPBASE_PLUGIN</code>. See <a class="el" href="TopicCustomizing_Plugins.html">customizing Eigen </a> for details.</p>
<p>The <code>Derived</code> class has to provide the following two methods describing the memory layout: </p><div class="fragment"><div class="line"><a class="code" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> innerStride() <span class="keyword">const</span>; </div>
<div class="ttc" id="anamespaceEigen_html_a62e77e0933482dafde8fe197d9a2cfde"><div class="ttname"><a href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Eigen::Index</a></div><div class="ttdeci">EIGEN_DEFAULT_DENSE_INDEX_TYPE Index</div><div class="ttdoc">The Index type as used for the API.</div><div class="ttdef"><b>Definition:</b> Meta.h:59</div></div>
</div><!-- fragment --> <div class="fragment"><div class="line"><a class="code" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> outerStride() <span class="keyword">const</span>; </div>
</div><!-- fragment --><dl class="section see"><dt>See also</dt><dd>class <a class="el" href="classEigen_1_1Map.html" title="A matrix or vector expression mapping an existing array of data.">Map</a>, class <a class="el" href="classEigen_1_1Block.html" title="Expression of a fixed-size or dynamic-size block.">Block</a> </dd></dl>
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  <img id="dynsection-0-trigger" src="closed.png" alt="+"/> Inheritance diagram for Eigen::MapBase&lt; Derived, ReadOnlyAccessors &gt;:</div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:aea142bb9ac9aa1b8c6b44f413daa4b88"><td class="memItemLeft" align="right" valign="top">const Scalar &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1MapBase_3_01Derived_00_01ReadOnlyAccessors_01_4.html#aea142bb9ac9aa1b8c6b44f413daa4b88">coeff</a> (<a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> index) const</td></tr>
<tr class="separator:aea142bb9ac9aa1b8c6b44f413daa4b88"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6d8ebb28996655c441d5d744ac227c8d"><td class="memItemLeft" align="right" valign="top">const Scalar &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1MapBase_3_01Derived_00_01ReadOnlyAccessors_01_4.html#a6d8ebb28996655c441d5d744ac227c8d">coeff</a> (<a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> rowId, <a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> colId) const</td></tr>
<tr class="separator:a6d8ebb28996655c441d5d744ac227c8d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a474a755c6699eeeb9fd4fc70c502cdec"><td class="memItemLeft" align="right" valign="top">const Scalar &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1MapBase_3_01Derived_00_01ReadOnlyAccessors_01_4.html#a474a755c6699eeeb9fd4fc70c502cdec">coeffRef</a> (<a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> index) const</td></tr>
<tr class="separator:a474a755c6699eeeb9fd4fc70c502cdec"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acaf91005e3230bbffe1c69a4199a0506"><td class="memItemLeft" align="right" valign="top">const Scalar &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1MapBase_3_01Derived_00_01ReadOnlyAccessors_01_4.html#acaf91005e3230bbffe1c69a4199a0506">coeffRef</a> (<a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> rowId, <a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> colId) const</td></tr>
<tr class="separator:acaf91005e3230bbffe1c69a4199a0506"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:adb0a19af0c52f9f36160abe0d2de67e1"><td class="memItemLeft" align="right" valign="top">EIGEN_CONSTEXPR <a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1MapBase_3_01Derived_00_01ReadOnlyAccessors_01_4.html#adb0a19af0c52f9f36160abe0d2de67e1">cols</a> () const EIGEN_NOEXCEPT</td></tr>
<tr class="separator:adb0a19af0c52f9f36160abe0d2de67e1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1bee30414766e9116a7abed067ca8007"><td class="memItemLeft" align="right" valign="top">const Scalar *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1MapBase_3_01Derived_00_01ReadOnlyAccessors_01_4.html#a1bee30414766e9116a7abed067ca8007">data</a> () const</td></tr>
<tr class="separator:a1bee30414766e9116a7abed067ca8007"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abc334ba08270706556366d1cfbb05d95"><td class="memItemLeft" align="right" valign="top">EIGEN_CONSTEXPR <a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1MapBase_3_01Derived_00_01ReadOnlyAccessors_01_4.html#abc334ba08270706556366d1cfbb05d95">rows</a> () const EIGEN_NOEXCEPT</td></tr>
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<h2 class="groupheader">Member Function Documentation</h2>
<a id="aea142bb9ac9aa1b8c6b44f413daa4b88"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aea142bb9ac9aa1b8c6b44f413daa4b88">&#9670;&nbsp;</a></span>coeff() <span class="overload">[1/2]</span></h2>

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template&lt;typename Derived &gt; </div>
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          <td class="memname">const Scalar&amp; Eigen::MapBase&lt; Derived, <a class="el" href="group__enums.html#gga9f93eac38eb83deb0e8dbd42ddf11d5daa1f2b0e6a668b11f2958940965d2b572">ReadOnlyAccessors</a> &gt;::coeff </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>&#160;</td>
          <td class="paramname"><em>index</em></td><td>)</td>
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<p>This is an overloaded version of <a class="el" href="classEigen_1_1DenseCoeffsBase_3_01Derived_00_01ReadOnlyAccessors_01_4.html#aa7231d519967c37b4f98002d80756bda">DenseCoeffsBase&lt;Derived,ReadOnlyAccessors&gt;::coeff(Index) const</a> provided to by-pass the creation of an evaluator of the expression, thus saving compilation efforts.</p>
<p>See <a class="el" href="classEigen_1_1DenseCoeffsBase_3_01Derived_00_01ReadOnlyAccessors_01_4.html#aa7231d519967c37b4f98002d80756bda">DenseCoeffsBase&lt;Derived,ReadOnlyAccessors&gt;::coeff(Index) const </a>for details. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a6d8ebb28996655c441d5d744ac227c8d">&#9670;&nbsp;</a></span>coeff() <span class="overload">[2/2]</span></h2>

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          <td class="memname">const Scalar&amp; Eigen::MapBase&lt; Derived, <a class="el" href="group__enums.html#gga9f93eac38eb83deb0e8dbd42ddf11d5daa1f2b0e6a668b11f2958940965d2b572">ReadOnlyAccessors</a> &gt;::coeff </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>&#160;</td>
          <td class="paramname"><em>rowId</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>&#160;</td>
          <td class="paramname"><em>colId</em>&#160;</td>
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          <td>)</td>
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<p>This is an overloaded version of <a class="el" href="classEigen_1_1DenseCoeffsBase_3_01Derived_00_01ReadOnlyAccessors_01_4.html#af51b00cc45490ad698239ab6a8b94393">DenseCoeffsBase&lt;Derived,ReadOnlyAccessors&gt;::coeff(Index,Index) const</a> provided to by-pass the creation of an evaluator of the expression, thus saving compilation efforts.</p>
<p>See <a class="el" href="classEigen_1_1DenseCoeffsBase_3_01Derived_00_01ReadOnlyAccessors_01_4.html#aa7231d519967c37b4f98002d80756bda">DenseCoeffsBase&lt;Derived,ReadOnlyAccessors&gt;::coeff(Index) const </a>for details. </p>

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<a id="a474a755c6699eeeb9fd4fc70c502cdec"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a474a755c6699eeeb9fd4fc70c502cdec">&#9670;&nbsp;</a></span>coeffRef() <span class="overload">[1/2]</span></h2>

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          <td class="memname">const Scalar&amp; Eigen::MapBase&lt; Derived, <a class="el" href="group__enums.html#gga9f93eac38eb83deb0e8dbd42ddf11d5daa1f2b0e6a668b11f2958940965d2b572">ReadOnlyAccessors</a> &gt;::coeffRef </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>&#160;</td>
          <td class="paramname"><em>index</em></td><td>)</td>
          <td> const</td>
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<p>This is the const version of coeffRef(Index) which is thus synonym of coeff(Index). It is provided for convenience. </p>

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<a id="acaf91005e3230bbffe1c69a4199a0506"></a>
<h2 class="memtitle"><span class="permalink"><a href="#acaf91005e3230bbffe1c69a4199a0506">&#9670;&nbsp;</a></span>coeffRef() <span class="overload">[2/2]</span></h2>

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          <td class="memname">const Scalar&amp; Eigen::MapBase&lt; Derived, <a class="el" href="group__enums.html#gga9f93eac38eb83deb0e8dbd42ddf11d5daa1f2b0e6a668b11f2958940965d2b572">ReadOnlyAccessors</a> &gt;::coeffRef </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>&#160;</td>
          <td class="paramname"><em>rowId</em>, </td>
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          <td></td>
          <td class="paramtype"><a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>&#160;</td>
          <td class="paramname"><em>colId</em>&#160;</td>
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          <td>)</td>
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<p>This is the const version of coeffRef(Index,Index) which is thus synonym of coeff(Index,Index). It is provided for convenience. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#adb0a19af0c52f9f36160abe0d2de67e1">&#9670;&nbsp;</a></span>cols()</h2>

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          <td class="memname">EIGEN_CONSTEXPR <a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> Eigen::MapBase&lt; Derived, <a class="el" href="group__enums.html#gga9f93eac38eb83deb0e8dbd42ddf11d5daa1f2b0e6a668b11f2958940965d2b572">ReadOnlyAccessors</a> &gt;::cols </td>
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<dl class="section return"><dt>Returns</dt><dd>the number of columns. </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classEigen_1_1MapBase_3_01Derived_00_01ReadOnlyAccessors_01_4.html#abc334ba08270706556366d1cfbb05d95">rows()</a>, ColsAtCompileTime </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a1bee30414766e9116a7abed067ca8007">&#9670;&nbsp;</a></span>data()</h2>

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          <td class="memname">const Scalar* Eigen::MapBase&lt; Derived, <a class="el" href="group__enums.html#gga9f93eac38eb83deb0e8dbd42ddf11d5daa1f2b0e6a668b11f2958940965d2b572">ReadOnlyAccessors</a> &gt;::data </td>
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<p>Returns a pointer to the first coefficient of the matrix or vector.</p>
<dl class="section note"><dt>Note</dt><dd>When addressing this data, make sure to honor the strides returned by innerStride() and outerStride().</dd></dl>
<dl class="section see"><dt>See also</dt><dd>innerStride(), outerStride() </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#abc334ba08270706556366d1cfbb05d95">&#9670;&nbsp;</a></span>rows()</h2>

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          <td class="memname">EIGEN_CONSTEXPR <a class="el" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> Eigen::MapBase&lt; Derived, <a class="el" href="group__enums.html#gga9f93eac38eb83deb0e8dbd42ddf11d5daa1f2b0e6a668b11f2958940965d2b572">ReadOnlyAccessors</a> &gt;::rows </td>
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<p></p>
<dl class="section return"><dt>Returns</dt><dd>the number of rows. </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classEigen_1_1MapBase_3_01Derived_00_01ReadOnlyAccessors_01_4.html#adb0a19af0c52f9f36160abe0d2de67e1">cols()</a>, RowsAtCompileTime </dd></dl>

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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="MapBase_8h_source.html">MapBase.h</a></li>
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